Average of a histogram

[Dil]

Hello,

Could you please help me to get the average of the following histogram?

I tried to use the following link. But it doesn’t help.

Calculate the average histogram of various histograms

I have a root file containing many pulses in histogram format. What I am trying to do is calculate the average pulse of those histograms. The code I am using is the following [code]#include “Riostream.h” #include void mean_Gamma_Flash(){ cout << “-------------------------------------------------------------------” << endl; gROOT->SetStyle(“Plain”); gStyle->SetOptStat(0000); gStyle->SetOptFit(0000); gStyle->SetOptTitle(0); Int_t detNum=1; Char_t dname[4]; sprintf(dname,"FIMG"); TStrin…

Thank you
Dil

[Wile_E_Coyote]

TH1::GetMean

[Dil]

Hello,

GetMean is not what I expect.It doesn’t give me correct answer.
I need to add up the bin contents in the range
[-0.06,0.1] GeV2 and then divide by the number of bins from -0.06 to 0.1

Thanks
Dil

[Wile_E_Coyote]

// assuming "h" is a pointer to your histogram
Int_t b1 = h->FindFixBin(-0.06);
Int_t b2 = h->FindFixBin(0.1);
Double_t v = h->Integral(b1, b2);
v /= b2 - b1 + 1;
std::cout << v << std::endl;

[Dil]

Thank you. This worked.
h->GetMean() didn’t work. Because it
returns the average x-value of the histogram, not the mean of the y-values.